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<td><h2 class="pageHeader">Using FusionCharts with PHP > Charting Data from Forms </h2></td>
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<td valign="top" class="text"><p>In this section, we'll show you how to use FusionCharts with PHP to plot data collected in forms. </p>
<p>We'll build a simple restaurant sales example, where the user will enter the items sold by a restaurant in a given week. This data will be submitted in a form to the server. We'll acquire this data and plot in on a chart. For the sake of simplicity, we wouldn't do any processing on this data. However, your real life applications might process data before presenting it on the chart. </p>
<p><strong>Before you go further with this page, we recommend you to please see the previous section "Basic Examples" as we start off from concepts explained in that page. </strong></p></td>
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<td valign="top" class="highlightBlock">The code examples contained in this page are present in<span class="codeInline"> Download Package > Code > PHP</span> > <span class="codeInline">FormBased</span> folder. </td>
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<td valign="top" class="text"> </td>
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<td valign="top" class="header">Building the Form </td>
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<td valign="top" class="text">The form is contained in <span class="codeInline">Default.php</span> and looks as under: </td>
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<td valign="top" class="text"><img src="Images/Code_Form.gif" class="imageBorder" /></td>
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<td valign="top" class="text">It's a very simple form which submits to <span class="codeInline">Chart.php</span>. As such, we wouldn't go into the code of this form. You can directly open the source from download and see it. </td>
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<td valign="top" class="text"> </td>
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<td valign="top" class="header">Requesting the data and Creating the Chart </td>
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<td valign="top" class="text">The work of requesting the data from submitted form and creating the chart is done in <span class="codeInline">Chart.php</span>, present in the same folder. It contains the following code: </td>
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<td valign="top" class="codeBlock"><p><?php<br />
<span class="codeComment">
//We've included ../Includes/FusionCharts.php, which contains functions<br />
//to help us easily embed the charts.</span><br />
include("../Includes/FusionCharts.php");<br />
?><br />
<HTML><br />
<HEAD><br />
<TITLE>FusionCharts - Form Based Data Charting Example</TITLE><br />
<SCRIPT LANGUAGE="Javascript" SRC="../../FusionCharts/FusionCharts.js"></SCRIPT><br />
</HEAD><br />
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<?php <br />
<br />
<span class="codeComment">//We first request the data from the form (Default.php)</span><br />
$intSoups = $_POST['Soups'];<br />
$intSalads = $_POST['Salads'];<br />
$intSandwiches = $_POST['Sandwiches'];<br />
$intBeverages = $_POST['Beverages'];<br />
$intDesserts = $_POST['Desserts'];<br />
<br />
<span class="codeComment">//Now that we've the data in variables, we need to convert this into XML.<br />
//The simplest method to convert data into XML is using string concatenation. </span><br />
<br />
<span class="codeComment">//Initialize <graph> element</span><br />
$strXML = "<graph caption='Sales by Product Category' subCaption='For this week' showPercentValues='1' pieSliceDepth='25' showNames='1' decimalPrecision='0' >";<br />
<span class="codeComment"> //Add all data</span><br />
$strXML .= "<set name='Soups' value='" . $intSoups . "' />";<br />
$strXML .= "<set name='Salads' value='" . $intSalads . "' />";<br />
$strXML .= "<set name='Sandwiches' value='" . $intSandwiches . "' />";<br />
$strXML .= "<set name='Beverages' value='" . $intBeverages . "' />";<br />
$strXML .= "<set name='Desserts' value='" . $intDesserts . "' />";<br />
<span class="codeComment"> //Close <graph> element</span><br />
$strXML .= "</graph>";<br />
<br />
<span class="codeComment"> 'Create the chart - Pie 3D Chart with data from $strXML</span><br />
echo renderChart("../../FusionCharts/FCF_Pie3D.swf", "", $strXML, "Sales", 600, 350);<br />
?></p>
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<td valign="top" class="text"><p>As you can see in the above code, we're doing the following:</p>
<ul>
<li>Including <span class="codeInline">FusionCharts.js</span> and<span class="codeInline"> FusionCharts.php</span> in this page. </li>
<li>Requesting data from the submitted form and storing it in local variables</li>
<li>Creating an XML data document using string concatenation and storing it in <span class="codeInline">strXML</span> variable </li>
<li>Creating a Pie 3D chart using <span class="codeInline">renderChart()</span> function and passing <span class="codeInline">strXML</span> as <span class="codeInline">dataXML</span> for the chart. </li>
</ul>
<p>When you finally run the code, you'll see a chart as under: </p></td>
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<td valign="top" class="text"><img src="Images/Code_FormChart.jpg" class="imageBorder" /></td>
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